Heyward A, Fromont J, Schönberg CHanna, Colquhoun J, Radford B, Gomez O. The Sponge Gardens of Ningaloo Reef, Western Australia. The Open Marine Biology Journal [Internet]. 2010  ;4(1):3 - 11. Available from: http://www.benthamscience.com/open/tombj/articles/V004/SI0001TOMBJ/3TOMBJ.htm